ESXi 5.x host becomes unresponsive during vMotion How to solve errors when a VMware vCenter vMotion migration or a configuration change fails

Suddenly somehow we got a virtual machine which couldn’t be powered on, or ESXi 5.x host becomes unresponsive after attempting to migrate a virtual machine from VMware vCenter Server or configuration change fails.

Symptoms

  • VMware ESXi 5.x host becomes unresponsive after attempting to migrate a virtual machine from VMware vCenter Server;
  • Making a configuration change to the ESXi host renders the host unresponsive;
  • Migration fails at 13%;
  • Some of the virtual machines in the inventory become invalid;
  • vpxa fails to start;
  • You are unable to power on a virtual machine.

Resolution

  • Connect to the ESXi host using SSH.
  • Check if SNMP is creating too many .trp files in the /var/spool/snmp directory on the ESXi host by running the command:
    ls /var/spool/snmp | wc -l

Note: If the output indicates that the value is 2000 or more, this may be causing the full inodes.

vmware result_ls root disk full, esxi, host, vmotion, snmp, trap, maintenance
vmware result_ls

To be sure check che disk root usage running this command

vdf -h
vmware disk root_usage
vmware disk root_usage

If the available space is less than 3-4Mb (or usage ‘USE’ over 90%), it could be a problem.

  • Delete the .trp files in the /var/spool/snmp/ directory by running the commands:

# cd /var/spool/snmp
# for i in $(ls | grep trp); do rm -f $i;done

CLEAN_TRP_SNMP results
CLEAN_TRP_SNMP results root disk full problems snmp

Related Articles: VMware KB | Wh33ly’s Blog

Installing VMware Tools in a Linux virtual machine How to install VMware Tools on linux Centos Virtual Machines

Purpose

This article provides steps to install VMware Tools in a Linux guest operating system using Compiler.

Note: For an overview of installing VMware Tools, see Overview of VMware Tools (340).

Resolution

Note: If your Linux distribution is not RPM-based, has a custom kernel, or is unsupported, use the steps below to compile VMware Tools, otherwise, see Installing VMware Tools in a Linux virtual machine using RPM (1018392).

To install VMware Tools in a Linux guest operating system using Compiler:

 

Note: If your Linux distribution is not RPM-based, has a custom kernel, or is unsupported, use the steps below to compile VMware Tools, otherwise, see Installing VMware Tools in a Linux virtual machine using RPM (1018392).

To install VMware Tools in a Linux guest operating system using Compiler:

  1. Ensure that your Linux virtual machine is powered on.
  2. If you are running a GUI interface, open a command shell.
    Note: Log in as a root user, or use the sudo command to complete each of these steps.
  3. Click VM in the virtual machine menu, then click Guest > Install/Upgrade VMware Tools.
  4. Click OK.
    Note: In some cases, verify that the CDROM device is Connected from within the Edit Settings option of the virtual machine.
  5. To create a mount point, run:
    mkdir /mnt/cdrom
  6. To mount the CDROM, run:
    mount /dev/cdrom /mnt/cdrom
  7. To copy the Compiler gzip tar file to a temporary local directory, run:
    cp /mnt/cdrom/VMwareTools-version.tar.gz /tmp/
    Where version is the VMware Tools package version.
  8. To determine the version of VMware tools, run:
    ls /mnt/cdrom
    You see output similar to:
    # VMwareTools-5.0.0-12124.tar.gz
  9. To change to the tmp directory and extract the contents of the tar file into a new directory called vmware-tools-distrib, run:
    cd /tmp
    tar -zxvf VMwareTools-version.tar.gz
  10. To change directory to vmware-tools-distrib and run the vmware-install.pl PERL script to install VMware Tools, run:
    cd vmware-tools-distrib
    ./vmware-install.pl
    Notes:

    • Complete the screen prompts to install the VMware Tools. Options in square brackets are default choices and can be selected by pressing Enter.
    • To compile VMware Tools successfully, you need gcc Compiler and Linux Kernel sources provided by your Linux distribution. Consult your Linux distribution documentation for details on methods to install these packages.
    • It is normal for the console screen to go blank for a short time during the installation when the display size changes.
    • Some warnings or errors are normal, like when a files does not exist.
    • Depending on the Linux distribution, your network service might restart after installation. VMware recommends that you invoke this command from the console and not remotely.
  11. If you are running a GUI interface, restart your X Window session for any mouse or graphics changes to take effect.
  12. To start VMware Tools running in the background during an X Window session, run:
    /usr/bin/vmware-toolbox &
  13. Depending on your environment, you may need to unmount the CD-ROM. To unmount the CD-ROM, run:
    umount /mnt/cdrom
  14. Depending on your environment, you may need to manually end the VMware Tools installation. To end the VMware Tools install, click VM in the virtual machine menu, then click Guest > End VMware Tools Install.
  15. To remove VMware Tools installation packages, run:
    cd
    rm /tmp/VMwareTools-version.tar.gz
    rm -rf /tmp/vmware-tools-distrib

Original Article by VMware KB >Here<